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MBD PUBLICATION-GENERAL PRINCIPLES OF ISOLATION OF ELEMENTS-QUESTION BANK
- Platinum, Palladium, Indium, etc. are called noble metals because:
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- Purest from of iron is .
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- Sapphire is a mineral of :
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- The main ore of zinc is:
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- Calcium occurs in nature as:
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- The metal which cannot be extracted by smelting process?
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- Which does not contain aluminium:
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- Which is incorrect as the uses of limestone in industries are concerne...
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- Which is not a silver ore ?
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- Iron is made inactive or passive by:
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- The mineral of copper is:
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- Granulated zinc is obtained by:
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- After partial roasting, the sulphide of copper is reduced by:
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- Which process is not used in purification of bauxite ?
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- Electrolysis of fused carnallite gives:
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- Which is not an ore of leads ?
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- Coating of zinc on iron objects is commonly known as:
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- In serpek's process, by product obtained in the purification of bauxit...
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- The sand stone in some iron ores is removed by:
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- Which is metalloid ?
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